Quality material: light weight alloy and rubber, high quality rubber and aluminum alloy, made of high quality rubber and metal, corrosion resistant, oil resistant, durable, wear resistant, not easy to tear and long service life. Excellent Design: Thickened design with double-sealed fasteners for better sealing. Large glowing shape ensures strong suction power and quicker oil pumping. Ingested with low permeation material to prevent fuel evaporation, to maintain flexibility and prevent collapse in hot and cold weather. The connector is designed for easy casing tube installation and will not fall off. Wide ApplicationSuitable for helicopters, ships, motorcycles and other fuel supply systems, suitable for carburettor and low pressure fuel systems Metal valves Size: 8mm (5/16") Body Size: 154 x 46mm / 6.06 x 1.81in Package includes: 1 x Rubber Gasoline Gas Petrol Diesel Pump Black (8mm)